Mathias Gaunard wrote:
Robert Jones wrote:
But this code doesn't....
vals | adaptors :: transformed( _1 * 2 ),
Without even testing, I assume that is because _1 * 2 does not allow the result type to be extracted using result_of. RangeEx forwards that to make_transform_iterator which requires it.
I personally overcame this issue by modifying the RangeEx library so that it wraps the functor into another one that will define result_type using typeof. That's a fairly ugly hack. A better way might to be - make result_of compatible with boost.lambda sig thingy, which might or might not help in some cases - allow boost.typeof to be used in result_of, in which cases result_of will always work, albeit not reference-correctly.
Hmm, I wonder if the current Phoenix would work? Jeff